1 The Department for Environment, Food and Rural Affairs, "Data Accuracy Guidelines for CRTN" Hepworth Acoustics Ltd 2005
2 The Department of Transport Welsh Office HMSO, "Calculation of Road Traffic Noise" HMSO BOOKS 1988
3 Park, I. S., "A Study on the Utilization of Site Noise Map for Environmental Impact" 66-70, 2005
1 The Department for Environment, Food and Rural Affairs, "Data Accuracy Guidelines for CRTN" Hepworth Acoustics Ltd 2005
2 The Department of Transport Welsh Office HMSO, "Calculation of Road Traffic Noise" HMSO BOOKS 1988
3 Park, I. S., "A Study on the Utilization of Site Noise Map for Environmental Impact" 66-70, 2005